Give an option to center align the message

[keertipurswani]

**Before reporting **
Make sure you restarted the IDE, especially after an update.
Make sure to perform a clean build, especially after an update.
If the error persists, you are in the right place.

Describe the bug
A clear and concise description of what the bug is.

Paste relevant code
Give me a taste of what you are doing so I can be directed towards the error.

**Screenshots **
If you have some screenshots, that is where you will put them.

Thanks for the feedback :)

[AndreHaueisen]

messageText accepts a Text widget. You can align your text using it.